
from urllib.parse import unquote

import urllib.parse
import re

flag=""

with open("sqli.txt","rb") as f:
    for i in f.readlines():
        i1=urllib.parse.unquote(i.decode().strip())
        if "flag AS CHAR" in i1 and  "1))!=" in i1:
            f1=re.search(r"1\)\)!=(\d+)\)",i1)
            flag+=chr(int(f1[1]))

print(flag)
